Antonyms of noun practicability

1 sense of practicability

Sense 1
practicability, practicableness -- (the quality of being usable)
       Antonym of impracticability (Sense 1)
      => impracticability, impracticableness -- (the quality of not being usable)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun practicability

1 sense of practicability

Sense 1
practicability, practicableness -- (the quality of being usable)
       => utility, usefulness -- (the quality of being of practical use)